Home / 217,860.30-326,906.55-84,744.90

Finding the Fourth Proportional to 217,860.30, 326,906.55 and 84,744.90

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Solution

The fourth proportional to 217,860.30, 326,906.55 and 84,744.90 is: 127,162.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,860.30 : 326,906.55 = 84,744.90 : x
  2. Step 2: Convert to fraction form
    217,860.30/326,906.55 = 84,744.90/x
  3. Step 3: Cross multiply
    217,860.30x = 326,906.55 × 84,744.90
  4. Step 4: Simplify right side
    217,860.30x = 27,703,662,889.10
  5. Step 5: Solve for x
    x = 27,703,662,889.10/217,860.30
  6. Step 6: Final answer
    x = 127,162.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.